Improvement in earth-augers



2Sheets--$heetlf J. B. CHRISTIAN.

Earth-Angers.

Patented Dec. 22,1874.

INVENTOR 11 WITNESSES. %mwZ/0r6 Attorneys.

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Earth-Angers. No. 158,032. Patented Dem-22,1874

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I v By Attorneys.

THE GRFHIC COJHOYOLITP'LQQSpU PARK PLACEJLY.

UNITED STATES PATENT QFFIOE.

JOHN B. CHRISTIAN, OF HAMBURG, IOWA.

IMPROVEMENT IN EARTH-AUGERS.

Specification forming part of Letters Patent No. 158,032, dated December 22, 1874; application filed June 3, 1874.

To all whom it may concern Be it known that 1, JOHN B. CHRISTIAN, of Hamburg, in the county of Fremont and in the State of Iowa, have invented certain new and useful Improvements in Well-Auger; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to theaccompanying drawings and to the letters of reference marked thereon, making a part of this specification.

The nature of my invention consists in the construction and arrangement of certain devices for boring earth-wells, the peculiarities of which will be hereinafter described.

In the annexed drawings, making part of this specification, Figure 1 is a perspective of my machine with a portion of the side of the bucket cut away to show the internal construction.

The other figures show detached parts.

In the figures, A represents the bucket, which is made of metal. of cylindrical shape, and of suitable size. This bucket is provided with two cross-braces, B and (J, one at its top and one near its bottom, both of which are provided at their centers with square openings, through which passes the square metallic auger-shaft D. Secured to the bottom of the auger-shaft is a crossbar, K, and to this cross-bar are secured two knives, K K. Hinged to the crossbar are two wings, E E, which are separated sufficiently from the knives to allow earth to pass up between them, but to retain it after it has passed up. Two crank bars or rods, H H, run down the sides of the bucket, and catch under hooks J J on the wings E E, to hold them in position. L L represent knives on the sides of the bucket at its lower edge. The lower end of shaft D is pointed, and projects below the bucket to act as a center guide. P represents a set-screw, which passes through the cross-bar B, and secures it to the shaft D, when desirable. a and d represent two collars, which surround the shaft D above the cross-bar B, which are connected together, but which have a collar interposed between them, which acts independently of either. The lower collar d is connected by means of a link on two sides to two bars, G G; and to the outer ends of these bars are connected two wings, which act as knives, and which are marked F F. These knives project over and beyond the sides, so that they will cut a curbing larger than the diameter of the bucket. To the intermediate collar e is connected a bale, and to this bale is connected a chain, M, and a rod, N. The chain is for the purpose of lifting the wings F when the bucket is to be withdrawn, so that it will pass freely. These wings lift to a perpendicular position, as seen in Fig 2, and thus the bucket passes through an opening larger than its diameter. The rod N serves to return the wing-cutters F to their cutting position. I represents a collar, which is confined to the'shaft D by means of a setscrew. This collar is for the purpose of preventing the bottom of the bucket from dropping out when it is being emptied.

The object of having the collar 6 loose is to keep the chain from winding around the shaft during the operation of boring.

After the earth is drawn up the wings E E are set free by the rods H H, and dropping by their hinges they discharge the earth from the bucket.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The reamer-knives F F o erlying the sides of the bucket, and operated by means of the rods G G and chain M, as and for the purpose set forth.

2. The set-screw I, in combination with the cross-bar B and shaft D, as and for the purpose set forth.

In testimony that I elaim the foregoing l have hereunto set my hand this 24th day of April, 187 4.

J. B. CHRISTIAN.

Vlitnesses:

WILLIAM H. BEACH, S. D. LONG. 

